Q1 — Linear Systems

Q1

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The capacitor is initially uncharged in the circuit shown.

A circuit diagram showing a 20 volt voltage source with the positive terminal in series with a switch. The switch is also in series with a 500 microfarad capacitor. The capacitor is in series with a 3 ohm resistor, which is in series with the negative terminal of the voltage source.

Most nearly, what is the approximate current 3 ms after the switch is closed?